Optical member driving mechanism with leading wire

Patent metadata

Field	Value
Publication number	US-12591107-B2
Application number	US-202418636754-A
Country	US
Kind code	B2
Filing date	Apr 16, 2024
Priority date	Jun 14, 2019
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.

First claim

What is claimed is:

1 . An optical member driving mechanism, comprising:
a movable portion, connected to an optical member; a fixed portion, wherein the movable portion is movable relative to the fixed portion; a driving assembly, driving the movable portion to move relative to the fixed portion, and the driving assembly includes a leading wire; and an electrical connection element, electrically connected to the driving assembly and has a surface which faces the leading wire, wherein the leading wire is electrically connected to the electrical connection element, and the leading wire includes:
a conductive portion; and
an insulating portion, disposed on the conductive portion;
wherein an exposed portion of the conductive portion is exposed from the insulating portion; wherein the surface faces the exposed portion, and when viewed in a direction perpendicular to the surface, the surface overlaps at least a portion of the insulating portion; wherein the movable portion and the leading wire do not overlap when viewed along an optical axis of the optical member.

2 . The optical element driving mechanism as claimed in claim 1 , wherein the electrical connection element includes a metal portion and a non-metal portion, the metal portion has a metal material, and the non-metal portion has a resin material, wherein the movable assembly includes a winding member and a metal assembly, the driving assembly includes a driving coil, a leading wire of the driving coil is disposed on a winding member surface of the winding member, and the electrical connection element is disposed between the metal assembly and the winding member.

3 . The optical element driving mechanism as claimed in claim 2 , wherein the electrical connection element is in direct contact with the insulating portion, wherein the metal assembly has a plate-shaped structure and defines an extending direction, wherein when viewed in a direction perpendicular to the extending direction, at least 80% of total area of the winding member surface is covered by the metal assembly.

4 . The optical element driving mechanism as claimed in claim 3 , wherein the winding member further has a glue receiving groove formed by the winding member surface, and the glue receiving groove is configured to receive at least part of the electrical connection element.

5 . The optical element driving mechanism as claimed in claim 4 , wherein the winding member has two side walls, the glue receiving groove is formed between the two side walls, and a plurality of positioning grooves is formed on the two side walls and is configured to position the leading wire.

6 . The optical element driving mechanism as claimed in claim 4 , wherein the movable assembly further includes a movable assembly surface which is not parallel to the winding member surface, and the electrical connection element is in direct contact with the movable assembly surface.

7 . The optical element driving mechanism as claimed in claim 2 , wherein an extending direction of the winding member is parallel to an extending direction of the metal assembly.

8 . The optical element driving mechanism as claimed in claim 2 , wherein the movable assembly further includes a glue receiving groove configured to receive at least part of the electrical connection element, and the glue receiving groove is connected to the winding member.

9 . The optical element driving mechanism as claimed in claim 2 , wherein the winding member has a blocking wall configured to limit movement of the electrical connection element in an extending direction of the winding member.

10 . The optical element driving mechanism as claimed in claim 2 , wherein the metal assembly has a plate-shaped structure, the plate-shaped structure has an extending direction, and the metal assembly has a through hole, wherein when viewed in a direction perpendicular to the extending direction, the electrical connection element and part of the winding member are seen through the through hole.

11 . The optical element driving mechanism as claimed in claim 2 , wherein the movable assembly includes a groove and a concave groove, the groove is connected to the winding member and configured to accommodate the leading wire, the concave groove is disposed in the groove and configured to accommodate the electrical connection element, wherein the groove and the concave groove have different depths.

12 . The optical element driving mechanism as claimed in claim 11 , wherein a depth of the concave groove is greater than a depth of the groove.

13 . The optical element driving mechanism as claimed in claim 11 , wherein the groove further has a bending receiving portion, part of the leading wire is located at the bending receiving portion, the bending receiving portion has a corner structure, and the leading wire located at the corner structure has the insulating portion.

14 . The optical element driving mechanism as claimed in claim 1 , wherein the optical element driving mechanism further includes a protruding post disposed on the movable assembly, the driving assembly includes a driving coil, the driving coil has a winding axis, and a leading wire of the driving coil is wound on the protruding post;
wherein the protruding post extends in a direction parallel to the winding axis of the driving coil.

15 . The optical element driving mechanism as claimed in claim 14 , wherein the movable assembly includes a groove and a concave groove, the groove is configured to accommodate the leading wire, and the concave groove is disposed in the groove and is configured to accommodate the electrical connection element, wherein the protruding post is not disposed in the concave groove.

16 . The optical element driving mechanism as claimed in claim 14 , wherein the movable assembly includes a groove and a concave groove, the groove is configured to accommodate the leading wire, and the concave groove is disposed in the groove and is configured to accommodate the electrical connection element, wherein the protruding post is disposed in the concave groove.

17 . The optical element driving mechanism as claimed in claim 16 , wherein the concave groove is formed by a side wall of the movable assembly, and the protruding post is disposed adjacent to the side wall.

18 . The optical element driving mechanism as claimed in claim 16 , wherein the movable assembly includes a metal assembly configured to be riveted to the protruding post after the electrical connection element is disposed in the concave groove.

19 . The optical element driving mechanism as claimed in claim 18 , wherein when viewed in a direction perpendicular to the optical axis, the protruding post is located between the metal assembly and the movable assembly, and when viewed along the optical axis, the protruding post overlaps at least part of the movable assembly and overlaps at least part of the metal assembly.

20 . The optical element driving mechanism as claimed in claim 19 , wherein when viewed in the direction perpendicular to the optical axis, the protruding post is covered by the movable assembly without being exposed, and when viewed along the optical axis, the protruding post is covered by the metal assembly without being exposed.

Assignees

• Tdk Taiwan Corp

Inventors

• Hu Chao-Chang
• Ho Liang-Ting
• Hsu Chen-Er
• Chan Yi-Liang
• Tseng Fu-Lai
• Wu Fu-Yuan
• Kuo Chen-Chi
• Wang Ying-Jen
• Hsia Wei-Han
• Tseng Yi-Hsin
• Lin Wen-Chang
• Liao Chun-Chia
• Liu Shou-Jen
• Chang Chao-Chun
• Lin Yi-Chieh
• Hsu Shang-Yu
• Liao yu-huai
• Hung Shih-Wei
• Lin Sin-Hong
• Lin Kun-Shih
• Lin Yu-Cheng
• Huang Wen-Yen
• Shen Wei-Jhe
• Wu Chih-Shiang
• SONG Sin-Jhong
• Chiu Che-Hsiang
• Lin Sheng-Chang

Classifications

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• H04N23/55

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• G02B27/646

  compensating for small deviations, e.g. due to vibration or shake (movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68) · CPC title

• H01F5/04

  Arrangements of electric connections to coils, e.g. leads · CPC title

• H01F7/066

  Electromagnets with movable winding · CPC title